A Muslim American in a star-spangled hijab defended freedom of religion during a tense Fox News debate with Donald Trump’s spokeswoman.

Saba Ahmed, the president and founder of the Republican Muslim Coalition, shut down critics who suggested the U.S. should force mosques to close their doors in the wake of the Paris terror attacks. Donald Trump said Monday that he’d “strongly consider” such a move.

“We go to the mosque to pray,” Ahmed said calmly on Megyn Kelly’s “The Kelly File” Wednesday. “It’s absolutely horrifying to hear that our constitutional rights to free exercise of religion are going to be challenged.”